Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest

Details Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest

2000-05-25

arxiv.org/abs/hep-ph/0005251v1

Prog.Theor.Phys.104:203-210,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 1 Postscript figure, uses ptptex.sty

Scientific paper

10.1143/PTP.104.203

The pi0 pi0 mass spectra and angular distributions around KKbar -threshold and at 1.5 GeV in ppbar (at rest) --> 3 pi0 in the Crystal Barrel experiment are reanalyzed by applying the new method, which is consistent with unitarity of S-matrix and expressed directly by resonance parameters. The effects of light sigma-meson production are clearly seen to improve the fit with sigma, in comparing with the fit without sigma.

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